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Cheap flights from Seattle to Ireland from €225

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00
DUB
-
SEA
13h 30m1 stop
€370Icelandair
Mon, 12 Jan - Fri, 16 Jan
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00
DUB
-
SEA
13h 30m1 stop
€371Icelandair
Sun, 25 Jan - Sat, 7 Feb
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00
DUB
-
SEA
13h 30m1 stop
€375Icelandair
Sun, 25 Jan - Sat, 7 Feb
American Airlines Logo
18:50 - 16:45
SEA
-
SNN
13h 55m1 stop
American Airlines Logo
07:50 - 16:55
SNN
-
SEA
17h 05m1 stop
€401American Airlines
Thu, 22 Jan - Thu, 29 Jan
American Airlines Logo
14:29 - 16:45
SEA
-
SNN
18h 16m2 stops
American Airlines Logo
07:50 - 16:55
SNN
-
SEA
17h 05m1 stop
€404American Airlines
Thu, 22 Jan - Thu, 29 Jan
Multiple Airlines Logo
14:10 - 15:00
SEA
-
ORK
16h 50m1 stop
Multiple Airlines Logo
06:00 - 12:35
ORK
-
SEA
13h 35m1 stop
€423Multiple Airlines
Wed, 4 Mar - Thu, 19 Mar
Delta Logo
08:30 - 15:00
SEA
-
ORK
22h 30m2 stops
Delta Logo
06:00 - 12:35
ORK
-
SEA
13h 35m1 stop
€426Delta
Wed, 4 Mar - Thu, 19 Mar
Delta Logo
15:10 - 23:25
SEA
-
ORK
24h 15m1 stop
Delta Logo
13:25 - 11:40
ORK
-
SEA
30h 15m1 stop
€428Delta
Sun, 18 Jan - Mon, 2 Feb
Multiple Airlines Logo
14:35 - 20:55
SEA
-
ORK
22h 20m2 stops
Multiple Airlines Logo
21:25 - 17:00
ORK
-
SEA
27h 35m2 stops
€448Multiple Airlines
Sun, 18 Jan - Mon, 2 Feb
KLM Logo
13:40 - 14:45
SEA
-
ORK
17h 05m1 stop
KLM Logo
06:00 - 11:40
ORK
-
SEA
13h 40m1 stop
€465KLM
Thu, 29 Jan - Thu, 5 Feb

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
12 Jan
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
16 Jan
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€370
Find similar
Icelandair
25 Jan
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
7 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€371
Find similar
Icelandair
25 Jan
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
7 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€375
Find similar

Aer Lingus flights from Seattle to Ireland

Our best Aer Lingus deals on Seattle to Ireland flight tickets
Aer Lingus
11 Mar
SEA21:05Seattle/Tacoma Intl
9h 05m
DUB13:10Dublin
20 Mar
DUB16:30Dublin
9h 50m
SEA19:20Seattle/Tacoma Intl
€412
Find similar
Aer Lingus
8 Apr
SEA20:20Seattle/Tacoma Intl
15h 30m
1 stop
ORK19:50Cork
16 Apr
ORK11:45Cork
14h 40m
1 stop
SEA18:25Seattle/Tacoma Intl
€3,811
Find similar
Aer Lingus
8 Apr
SEA20:20Seattle/Tacoma Intl
15h 30m
1 stop
ORK19:50Cork
17 Apr
ORK11:45Cork
14h 40m
1 stop
SEA18:25Seattle/Tacoma Intl
€3,876
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 12/1

14:35-10:15

1 stop11h 40m

Dublin

Fri 16/1

11:30-17:00

1 stop13h 30m

€370

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 25/1

14:35-10:15

1 stop11h 40m

Dublin

Sat 7/2

11:30-17:00

1 stop13h 30m

€371

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 25/1

14:35-10:15

1 stop11h 40m

Dublin

Sat 7/2

11:30-17:00

1 stop13h 30m

€375

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 22/1

18:50-16:45

1 stop13h 55m

Shannon

Thu 29/1

07:50-16:55

1 stop17h 05m

€401

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 22/1

14:29-16:45

2 stops18h 16m

Shannon

Thu 29/1

07:50-16:55

1 stop17h 05m

€404

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 4/3

14:10-15:00

1 stop16h 50m

Cork

Thu 19/3

06:00-12:35

1 stop13h 35m

€423

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 4/3

08:30-15:00

2 stops22h 30m

Cork

Thu 19/3

06:00-12:35

1 stop13h 35m

€426

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 18/1

15:10-23:25

1 stop24h 15m

Cork

Mon 2/2

13:25-11:40

1 stop30h 15m

€428

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 18/1

14:35-20:55

2 stops22h 20m

Cork

Mon 2/2

21:25-17:00

2 stops27h 35m

€448

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Thu 29/1

13:40-14:45

1 stop17h 05m

Cork

Thu 5/2

06:00-11:40

1 stop13h 40m

€465

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €466.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €558 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €506 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 25% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €87
Flights to Shannon, Clarefrom €89
Flights to Donegalfrom €76
Flights to Milltown (Kerry)from €38